From: Julia Lawall <julia@xxxxxxx> Use the error handling code at the end of the function, rather than returning directly. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ identifier x; @@ kfree(x) @@ identifier r.x; expression E1!=0,E2,E3,E4; statement S; @@ ( if (<+...x...+>) S | if (...) { ... when != kfree(x) when != if (...) { ... kfree(x); ... } when != x = E3 * return E1; } ... when != x = E2 if (...) { ... when != x = E4 kfree(x); ... return ...; } ) // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> --- I wonder if the error handling code at the end of the function should be calling clk_put as well? In that case, having a separate label for this case would be useful. Otherwise, one of error_request_irq and error_get_clk can be deleted drivers/video/msm/mdp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/video/msm/mdp.c b/drivers/video/msm/mdp.c index 243d16f..01fa660 100644 --- a/drivers/video/msm/mdp.c +++ b/drivers/video/msm/mdp.c @@ -421,7 +421,8 @@ int mdp_probe(struct platform_device *pdev) clk = clk_get(&pdev->dev, "mdp_clk"); if (IS_ERR(clk)) { printk(KERN_INFO "mdp: failed to get mdp clk"); - return PTR_ERR(clk); + ret = PTR_ERR(clk); + goto error_get_clk; } ret = request_irq(mdp->irq, mdp_isr, IRQF_DISABLED, "msm_mdp", mdp); @@ -495,6 +496,7 @@ int mdp_probe(struct platform_device *pdev) error_device_register: free_irq(mdp->irq, mdp); error_request_irq: +error_get_clk: iounmap(mdp->base); error_get_irq: error_ioremap: -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
